ʿAbdullāh ibn al-Mubārak was asked a question whilst Abū Isḥāq al-Fazārī sat adjacent to him. So ʿAbdullāh ibn al-Mubārak gestured to the questioner – who was Khurasānī (Iranian) – to ask Abū Isḥāq al-Fazārī. The questioner asked and Abū Isḥāq al-Fazārī answered. Then the Khurasānī turned towards ʿAbdullāh ibn al-Mubārak and said in Iranian: «توجه مي كوهي» “What are you doing?” Ibn al-Mubārak replied in Iranian: «مَا بِمَجْلِسِ مهنران سخن تكويم» “We do not speak in the gatherings of our elders.”